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1987070334 = 23437701823
BaseRepresentation
bin111011001110000…
…0100100101111110
312010111000122001120
41312130010211332
513032142222314
6525101451410
7100145550654
oct16634044576
95114018046
101987070334
1192a716397
12475570b66
1325889b182
1414bc90dd4
15b96ab8a9
hex7670497e

1987070334 has 16 divisors (see below), whose sum is σ = 4066563072. Its totient is φ = 646953048.

The previous prime is 1987070269. The next prime is 1987070359. The reversal of 1987070334 is 4330707891.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3850654 + ... + 3851169.

It is an arithmetic number, because the mean of its divisors is an integer number (254160192).

Almost surely, 21987070334 is an apocalyptic number.

1987070334 is an abundant number, since it is smaller than the sum of its proper divisors (2079492738).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1987070334 is a wasteful number, since it uses less digits than its factorization.

1987070334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7701871.

The product of its (nonzero) digits is 127008, while the sum is 42.

The square root of 1987070334 is about 44576.5670952800. The cubic root of 1987070334 is about 1257.2001182608.

The spelling of 1987070334 in words is "one billion, nine hundred eighty-seven million, seventy thousand, three hundred thirty-four".

Divisors: 1 2 3 6 43 86 129 258 7701823 15403646 23105469 46210938 331178389 662356778 993535167 1987070334